Only True ’60s Television Fans Can Ace This Character Quiz

Who replaced William Frawley in My Three Sons?

Retry Correct Incorrect William Frawley played the maternal grandfather of the show’s three boys, but had to retire from the series due to an illness. The writers then wrote in the grandfather’s brother, played by William Demarest, as a replacement.

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CBS

CBS

Who replaced William Frawley in My Three Sons?

• Levy O’neil
• William Demarest
• Charles Lang
• Mark Ivory